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Java J2EE Interview Questions
Questions Answers Views Company eMail

Can we define constructor in Servlet class?

Accenture, Yugma,

10 19137

How can I share objects across different sessions?

Accenture,

2 7812

How exception handling is provided in struts?

Accenture,

2 8405

Can we have different controllers in one struts app?

Accenture,

7 16249

Can we have multiple struts-config files in a single web app? If yes why should we have them? Will multiple copies make any impact on performance?

Accenture,

2 11311

What code optimizations techniques you follow in general practice?

Accenture, TCS, Wipro,

2 5938

Why should we go for struts framework?

Accenture,

5 12726

System.out.println("somestring"); It will create any object or not

CSC,

5 7241

________ exception must be either caught or specified in throws class of the method.

 1 3184

Every class extends object but why it is not possible for every object to invoke clone() method. ideally protected methods should be accessible from sub classes. isn't it?

 2 3769

Difference between JVM and JRE?

Amdocs,

3 5933

Diff between Comparator and Comparable?

Aditya Birla,

2 8325

When you are deploying an application, if you got Out Of Memory exception, what you will do

IBM,

4 12543

what are the major difference between 6.1 and 7.0?

IBM, Wipro,

9 31499

.while installing application server in silent mode, if it failed without creating any logs, how do you trouble shoot ?

CEBS, IBM,

2 9058

Un-Answered Questions { Java J2EE }

What is dot operator?

573

What is the use of persistent store in weblogic?

526

What causes memory leak in java?

475

What is :: operator in java?

504

What is orm principle?

187




Is arraylist ordered?

563

What are the basic hibernate persistent annotations?

168

Can arraylist contain null values?

566

What is string english?

538

How is aop implemented in spring?

168

What is supplier in java?

554

What is a void in java?

580

What is the different logging methods available?

455

What is hikari in spring boot? : Spring Boot

154

What is an entity in entity framework?

151

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